Muscles

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A. Head and neck muscles

...

B. muscles that move the shoulder and arm

...

Muscles that move the hip and leg

...

Muscles that move the trunk

...

what is the iliotibial tract?

a band of collagen fibers that extends along the lateral surface of the thigh and inserts on tibia

the major function of the deltoid muscle is

abduction

the long head of the triceps brachii also

adducts and extends the shoulder

what is the action of these muscles at the hip and knee

adducts hip and flexes the knee

how can it be that this one muscle extends and flexes the shoulder

anterior part: shoulder flexion posterior part:shoulder extension superior part:shoulder abduction

sudden paralysis of fascial muscles on one side of the face is called

bells palsy

breathing muscle made up of skeletal muscle

diaphragm

collective name for three major muscle group of the back

errector spinae

triceps brachii

extends the elbow

the latissimus dorsi

extends,adducts and medial rotates the shoulder

fascial muscles are innervated by the

facial nerve

which nerve innervates these muscles

femoral nerve

the iliacus and psoas major work synergistically to

flex the hip

the brachialis (powerful) muscle _____ the elbow

flexes

the pectoralis major muscle ____

flexes, adducts and medial rotates the shoulder

the major function of the biceps bracii muscle is elbow

flexion

origin:

generally less-movable bony attachment of the muscle

insertion:

generally the more move able bony attachment of the muscle

which is the prime mover for hip extension

gluteus maximus

which one laterally rotates the hip

gluteus maximus

which one abducts the hip

gluteus medius

which of these muscles causes movement at both the hip and knee

gracilis

contraction of the trapezius muscle would

hyperextend the neck

contraction of both sternocleidomastoid muscles would cause neck

hyperextension

rotator cuff:

infraspinatus,supraspinatus,teres minor,subscapularis

what would happen if the left sternocleidomastoid muscle was contracted but not the right?

it would go on the opposite side

why is this muscle called quadriceps

made up of four

scalene muscles can cause

neck flexion ( if the head is held still it can lift the rib cage and assist in breathing)

do gluteus maximus and medius have the same functions

no

facial muscles:

orbicularis oris,orbicularis oculi,buccinator,zygomatic muscle

the brachialis is the ____for elbow flexion

prime mover

the iliopsoas is the ___

prime mover for hip flexion

which of these muscles would help flex the spinal column?

rectus abdominis

abdominals:

rectus abdominis,external oblique,internal oblique,transverse abdominis

which quadriceps muscle spans two joints

rectus femoralis

which of these muscles causes hip flexion

rectus femoris

quadriceps muscle: (R,V,V,V)

rectus femoris,vastus lateralis,vastus medialis,vastus intermedius

other thigh muscles:

sartorius, gracillis, tensor fasciae latae

facial muscles insert into the

skin

which muscle of the rotator cuff abducts the shoulder?

supraspinatus

which muscle of the rotator cuff abducts medially rotates the shoulder?

teres major and latissimus dorsi

which muscle laterally rotate the shoulder?

teres minor and infraspinatus

regarding shoulder flexion the pectoralis major is

the prime mover

how can it be that biceps brachii muscle produces movement at both the shoulder and elbow?

two origins

which muscle causes knee extension

vastus lateralis and vastus medialis

How does the muscle attach to bone?

via tendons into periosteum

how many fascial nerves are there

2 (left and right)


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